Continuity mistake: The Moment Raoul falls through the trapdoor in the stairs and into the water, you can see the grid (that's coming down later) already in the water. For the grid to come down and drown Raoul, he must have fallen through it. (01:53:35)
Continuity mistake: When Christine takes off the Phantom's mask during Don Juan, the appearance of his face suddenly gets drastically CG enhanced. (This occurs AFTER Christine has already removed the mask, as the two screenshots show.) (01:55:10)
Continuity mistake: The aspect of the Phantom's deformity undergoes a major change between when Christine takes his mask off on stage and the later parts of the movie. (01:55:25 - 02:00:00)
Continuity mistake: After being abducted during the Don Juan performance, Christine changes into the wedding gown and the Phantom places the veil on her head. The veil gets thrown aside by the time Raoul arrives. Between the time Christine leaves and the mob arrives, there is a shot of the mannequin with the veil perfectly positioned on the head (although it is highly unlikely that someone took time to put it back.) When Meg walks through the lair and retrieves the mask, yet another shot of the dummy shows that the veil has disappeared. (02:00:50 - 02:09:55)
Continuity mistake: When Raoul is tied to the gate, the ropes across his chest change frequently. Sometimes there are 3 running parallel to each other, from his shoulder to the waist. Other times there is a big knot in the top rope. Still others there appear to be 2 ropes across with a third running straight down his chest between them. (02:02:50)
Continuity mistake: At the end when Meg steps out of the water, her pants are wet. However, when she enters the bedroom and finds the Phantom's mask, her pants are perfectly dry. (02:10:35)
Continuity mistake: In the last scene, Christine pulls the cover off one mirror. The coverings stay like this till the Phantom leaves, when both mirrors are uncovered.
Continuity mistake: At the end of the music of the night scene, the Phantom lays Christine down on the bed and sings the line, "help me make the music of the night." While singing this, he moves his finger down Christine's jaw line, and his finger comes off her chin. Yet when the camera angle changes, he is just starting to move his finger down her jaw, starting up near the ear. He wouldn't have had time to move his finger back up that quickly.
Continuity mistake: When Christine goes back to La Carlotta's dressing room the flowers by "The mirror" are pink, but when the Phantom shows up and she walks toward the mirrors the flowers are white.
Continuity mistake: When Christine is in the Phantom's lair for the second time, after the Phantom puts the veil on her head, the camera has a close up of him (during the lines 'an eternity of this before your eyes') and the back of Chirstine's head can be seen not wearing the veil. When the camera pans back to her, she is wearing the veil and removes it a little later.
Continuity mistake: When Christine is taken to the Phantom's Lair the first time (at roughly 38 minutes into the film), as the Phantom sings, he leads her by the hand from the gondola to the "Christine" mannequin. On their way, near the pipe organ is a Roman-style bust of a man's head with a dark strip of cloth askew over its left eye. When the Phantom sings "Let your soul take you." and "Savor each sensation." the strip of cloth is wide (like a sweat band), but when he sings "Let the dream begin." a 10th of a second later, the cloth has become very narrow - thin, like a bow tie. It turns back into the sweat band version again after Christine's nap.
Continuity mistake: When Christine enters Carlottas dressing room after Hannibal, there are two stands of roses by the door. After she's changed there is only a small vase of roses, but the stands must have been way too heavy for her to move herself.
Continuity mistake: When the Phantom first brings Christine to his lair, just as he walks up the steps note the four piece candelabra in the background, it has candles much smaller than they appear later in the scene.
Continuity mistake: In the last part of the movie, when Raoul is all tied up, the Phantom pulls the rope around his neck, and mucous comes out of Raoul's nose. The camera turns, and then goes back to him, and the mucous is gone.
Continuity mistake: The lower lid of the Phantom changes from looking normal (when he's got his mask on) to deformed (when he takes the mask off). No makeup could hide that and considering the size of the mask's holes, this should be easily visible at all times.
Continuity mistake: When Christine first enters the Phantom's 'lair', one perfectly shaped lock of hair is on her left shoulder. Then, throughout "Music of the Night", it gets thinner, longer, and less curly two or three times. Then it goes back to its original thickness, length, and amount of curl.
Continuity mistake: Right before Christine pulls off the Phantom's mask for the second time, at the end of The Point of No Return, his wig has already moved up to the point where you can see his real hair underneath before Christine even touches him.
Continuity mistake: During All I Ask of You, Christine and Raoul are walking on the rooftop, and he even picks her up and swings her around. When the Phantom sings the reprise almost immediately afterward, there is a shot of him on the statue that shows the entire rooftop area, and his footprints in the snow are the only ones visible. This rooftop is a closed area and the only way in or out is the door and steps we see Raoul and Christine using. Furthermore, the Phantom was spying on the lovers by hiding behind a statue almost next to them, and it was not snowing nearly heavy enough to have completely covered up Raoul and Christine's footprints.
Continuity mistake: When the Phantom is singing and close-ups are done on his face, you can see his right eyebrow peeking out from under the mask. But we see later, when he is shown without his mask, that he has no eyebrow at all on that side as a result of his deformity.
Continuity mistake: When old Raoul is watching the young couple outside the Swarovski shop his eye turns brown as we move back in time, but young Raoul's eyes are blue.
Answer: During "Point of No Return, " the Phantom shares a stage with the very vulnerable Christine. He is still masked, though it is a mask other than his trademark white face covering. The Phantom is well known as a murderer and an escape artist. This is the the equivalent of a hostage situation. To rush the stage might risk lives, and everyone in the know is proceeding with caution. During the song, we do get glimpses of police moving about, and Raoul and others looking concerned, subtly signaling one another and considering their next move. The stage crew seems confused. The dancers go on with the show. And law enforcement officers await the right moment to advance. It also gives us the opportunity to enjoy a dramatic musical number that rushing the stage would interrupt.
Michael Albert